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Main Title

Status report #5 : stability of organic audit materials and results of source test analysis audits /

Author

Jayanty, R. K. M. ; Gutknecht, W. F. ; Decker, C. E.

Other Authors

Author	Title of a Work
Gutknecht, William F.
Decker, C. E.
Knoll, Joseph E.
Von Lehmden, Darryl.

CORP Author

Research Triangle Inst., Research Triangle Park, NC.;Environmental Monitoring Systems Lab., Research Triangle Park, NC. Quality Assurance Div.

Publisher

U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory,

Year Published

1983

Report Number

EPA 600-4-84-002; EPA-68-02-3431

Stock Number

PB84-128578

OCLC Number

877009901

Subjects

Stability ; Organic compounds ; Gases--Analysis

Additional Subjects

Chemical industry ; Standards ; Hydrocarbons ; Halogen organic compounds ; Auditing ; Air pollution ; Sulfur organic compounds ; State government ; Sources ; Stability ; Concentration(Composition) ; Mixtures ; Tables(Data) ; Air quality

Internet Access

Description	Access URL
	https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9101VYK1.PDF

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
ELBD ARCHIVE	EPA 600-4-84-002	Received from HQ	AWBERC Library/Cincinnati,OH	10/04/2023
NTIS	PB84-128578	Some EPA libraries have a fiche copy filed under the call number shown.		07/26/2022

Collation

77 leaves ; 28 cm

Abstract

A repository of 42 gaseous compounds including hydrocarbons, halocarbon, and sulfur species has been established under contract with the U.S. Environment Protection Agency (USEPA). The main objectives of this on-going project are (1) to provide gas mixtures to EPA, state/local agencies, or their contractors, as performance audits to assess the accuracy of source emission measurements in certain organic chemical manufacturing inductries, (2) to corroborate the vendor's certified analysis of the gas mixtures by in-house analysis, (3) to determine the stability of the gas mixtures with time by in-house analysis, and (4) to explore the feasibility of new audit materials as requested by EPA. Thus far, 28 compounds have been used to conduct 106 different audits. The results of these audits and a description of the experimental procedures used for analyses and available stability data are presented in the status report. Seventy percent of the audit results are within 10 percent of the expected values. Compound stabilities have been determined through multiple analyses of the cylinders containing them. Stability values for all compounds are expressed as percent change per month. Calculated changes are typically found to be a few tenths of one percent per month, though many of these changes may not be significantly different from zero.

Notes

"RTI/2418/29." EPA Contract No. 68-02-3431. "June 1983." EPA Project Officers: Joseph E. Knoll, Darryl J. von Lehmden.

Place Published

Research Triangle Park, NC

Supplementary Notes